Silk Test Classic uses the industry-standard conventions for representing numbers of different bases:

- Binary
- Each number has a prefix of 0b (zero, lowercase B), for example
`0b10110111`. - Decimal
- A number without a prefix, for example,
`1776`. - Hexadecimal
- Each number has a prefix of 0x (zero, lowercase letter X), with the letters A through F representing the numbers above 9,
for example
`0x03CF 07FFF`and`0x0010`.

Embedded spaces in long numbers are for ease of reading and are ignored.